JP5631961B2 - System and method for sending and receiving acknowledgment packets - Google Patents

Description

Priority claim

Priority Claims under 35 USC 119 This patent application is filed on September 19, 2008, which is assigned to the assignee and expressly incorporated herein by reference, “SYSTEM AND METHOD FOR ACKNOWLEDGEMENT PACKET”. Claims priority of provisional application 61 / 098,606 entitled “TRANSMITTING AND RECEIVING”.

  The present disclosure relates generally to communication systems, and more specifically to systems and methods for transmitting and receiving acknowledgment packets.

  In many communication systems, the transmission of a data packet from the source node to the destination mode is an acknowledgment packet ("" sent by the destination node to the source node to provide notification after successful reception and validation of the data packet. ACK packet)). In this way, the source node receives feedback regarding the transmission of the data packet. A request for a response ACK packet may be required in some communication systems to implement a packet retransmission scheme to satisfy a higher layer application quality of service (QoS) requirement.

  In a conventional communication system, after a source node transmits a data packet, the source node scans the channel once for an ACK packet from the destination node. If the ACK packet is not received, the source node then schedules the retransmission of the data packet to the destination node or determines that the data packet has failed to be transmitted, depending on whether the maximum number of permitted retransmissions is met. will do. In such a system, the retransmission rate or the number of transmission failures can be very high depending on the channel conditions, which adversely affects the QoS of the communication session between the source and destination nodes. Probability is high.

  An aspect of the disclosure includes receiving a first packet, processing a first packet, and first definition if processing of the first packet is completed within a first defined time interval. Sending a second packet at approximately the end of a given time interval, or if processing of the first packet is not completed within the first defined interval, but is completed within the second defined interval; Transmitting a second packet at approximately the end of a second defined time interval. In another aspect, the first defined interval is one of a first estimated period for receiving the first packet and a second estimated period for processing the first packet. Based on at least one. In yet another aspect, the first packet includes at least one of a preamble and a payload. In yet another aspect, the second packet comprises at least one of a message indicating at least one of reception of the first packet, processing of the first packet, and verification of the first packet, and a preamble. Contains one.

  In another aspect, the difference between the first defined interval and the second defined interval may be based on supported simultaneous communication links. In yet another aspect, the receiver is enabled at approximately the beginning of a packet receive cycle to receive the first packet, conserving power after the receiver has completed receiving the first packet. To be disabled. In yet another aspect, the transmitter is enabled at approximately the end of the first or second defined time interval to transmit the second packet, after which the transmitter completes the transmission of the second packet. After that, it can be disabled to save power.

  Another aspect of the disclosure includes transmitting a first packet, scanning a channel for a second packet at approximately the end of a first defined interval from transmission of the first packet, and first If the second packet is not received within the first defined interval, scan the channel for the second packet at the end of the second defined time interval from the transmission of the first packet. , Relating to another communication method. In another aspect, the first defined interval may be based on an estimated period for receiving a second packet in response to transmission of the first packet. In yet another aspect, the first packet may include at least one of a preamble and a payload. In yet another aspect, the difference between the first defined interval and the second defined interval may be based on supported simultaneous communication links.

  In another aspect, the transmitter is enabled at approximately the beginning of a packet transmission cycle to transmit the first packet and disabled to save power after the transmitter completes the transmission of the first packet. Can be done. In yet another aspect, the receiver is enabled at approximately the end of the first or second defined time interval to scan for a second packet, after which the receiver saves power. In addition, it may be disabled after completing the execution of the first scan, the second scan, or the reception of the second packet. In yet another aspect, the plurality of receive and / or transmit elements described herein have a fractional spectrum greater than about 20%, a spectrum greater than about 500 MHz, or a fractional spectrum greater than about 20%. And can be configured to receive signals having a spectrum of about 500 MHz or greater. The use of the phrase “phrase” of at least one of “a”, “b”, and “c” as used herein means “a” or “b” or “c” or any of them It shall mean a combination.

  Other aspects, advantages and novel features of the present disclosure will become apparent from the following detailed description of the disclosure when considered in conjunction with the accompanying drawings.

1 illustrates a block diagram of an exemplary communication system in accordance with aspects of the disclosure. FIG. FIG. 4 shows a timing diagram of an exemplary method for transmitting and receiving acknowledgment packets in accordance with another aspect of the disclosure. 6 shows a flowchart of an exemplary method of transmitting a packet and receiving a response packet in accordance with another aspect of the disclosure. 6 shows a flowchart of an exemplary method of receiving a packet and sending a response packet, in accordance with another aspect of the disclosure. FIG. 4 shows a block diagram of an exemplary communication device in accordance with another aspect of the disclosure. FIG. 4 shows a block diagram of another exemplary communication device in accordance with another aspect of the disclosure. FIG. 6 shows a block diagram of yet another exemplary communication device in accordance with another aspect of the disclosure. FIG. 4 shows a timing diagram of various pulse modulation techniques in accordance with another aspect of the disclosure. FIG. 4 shows a timing diagram of various pulse modulation techniques in accordance with another aspect of the disclosure. FIG. 4 shows a timing diagram of various pulse modulation techniques in accordance with another aspect of the disclosure. FIG. 4 shows a timing diagram of various pulse modulation techniques in accordance with another aspect of the disclosure. FIG. 4 shows a block diagram of various communication devices communicating with each other over various channels in accordance with another aspect of the disclosure.

  Various aspects of the disclosure are described below. It will be apparent that the teachings herein may be embodied in a wide variety of forms, and any particular structure, function, or both disclosed herein is merely representative. Based on the teachings herein, those skilled in the art will appreciate that the aspects disclosed herein may be implemented independently of any other aspects, and two or more of these aspects may be combined in various ways. . For example, an apparatus may be implemented or a method may be implemented using any number of aspects described herein. Further, in addition to one or more aspects described herein, or using other structures, functions, or structures and functions, such devices may be implemented or such methods may be implemented. Can be implemented. As some examples of the above concepts, in some aspects, the disclosure includes receiving a data packet, processing the data packet, and processing the data packet is completed within a first defined interval. The step of transmitting an ACK packet at approximately the end of the first defined interval, or the processing of the data packet is not completed within the first defined interval, but within the second defined time interval. If complete, relates to a communication method comprising transmitting an ACK packet at approximately the end of a second defined time interval. Another communication method is transmitting a data packet, scanning the channel for an ACK packet at approximately the end of the first defined interval from the transmission of the data packet, and the ACK packet is defined as being first defined. If not received within the specified interval, it involves scanning the channel for an ACK packet at approximately the end of the second defined time interval from the transmission of the data packet.

  FIG. 1 illustrates a block diagram of an exemplary communication system 100 in accordance with an aspect of the disclosure. The communication system 100 includes a source communication device 102 and a destination communication device 104 that is communicatively coupled to the source communication device 102 via a communication medium 106. Each communication device 102 and 104 may be any device that can send packets to each other via communication medium 106. In this example, the communication device 102 is a “source” because it starts transmitting data (or control) packets to the destination communication device 102. The communication device 104 is a “destination” because it receives a data packet from the source communication device 102 and sends back a response packet to the source communication device 102 based on one or more defined conditions. Communication medium 106 may be any medium that allows packets to be communicated between a source device and a destination device, such as a wired medium, a wireless medium, or a combination thereof.

  As will be discussed in more detail below, the source communication device 102 transmits two packets to the destination communication device 104 and receives two possible non-overlapping (non-overlapping) to receive response packets from the destination communication device 104. -overlapping) Scheduling scans S1 and S2. The first scan S1 is scheduled approximately at the end of the first defined time interval T1 from the transmission of the packet, and the second scan S2 is approximately the second defined time interval T2 after the transmission of the packet. Scheduled at the end. The second defined interval T2 has a longer length than the first time interval T1. (For example, T2> T1).

  If the source communication device 102 receives a response packet during the first scan S1, the source communication device 102 cannot perform the second scan S2. However, if the source communication device 102 does not receive a response packet during the first scan S1, the source communication device 102 performs a second scan S2. If the source communication device 102 does not receive a response both during the first scan S1 and during the second scan S2, the source communication device 102 schedules a retransmission of the packet or the packet is transmitted Let it fail.

  The destination communication device 104 then receives the packet from the source communication device 102 and processes the packet to verify it. If the destination communication device 104 completes processing and verification of the packet within the first time interval T1, the destination communication device 104 sends a response packet to the source communication device 104 at approximately the end of the first time interval T1. . On the other hand, if the destination communication device 104 does not complete packet processing and verification within the first time interval T1, but the packet processing and verification is completed within the second time interval T2, the destination communication device 104 A response packet is transmitted to the source communication device 102 at approximately the end of the second time interval T2. If the destination communication device 102 cannot process and verify the received packet within the second time interval T2, the destination communication device 104 does not send a response packet to the source communication device 102. These concepts are described in more detail below.

  FIG. 2 illustrates a timing diagram of an exemplary method for transmitting and receiving acknowledgment packets in accordance with another aspect of the disclosure. As shown in the timing diagram, transmission of data packets and possible response packets may be accomplished within a packet transmission (or reception) cycle indicated by a vertical dotted line. Two defined packet transmission cycles are shown in the timing diagram, but there can be many others in the actual communication session between the source device and the destination device. The upper half of the timing diagram shows the operation of the source communication device 102 and the lower half of the diagram shows the operation of the destination communication device 104. In this example, the first (left-hand) packet transmission cycle is when the destination communication device 104 sends a response packet (eg, an ACK packet) to the source communication device 102 during the second scan S2 performed by the source communication device 102. ) Is used to indicate the status of sending. The second (right side) packet transmission cycle is used to indicate the situation in which the destination communication device 104 transmits a response packet to the source communication device 102 during the first scan S1 performed by the source communication device 102. Is done.

  As the timing diagram shows, during the first packet transmission cycle, the source communication device 102 begins by transmitting a packet to the destination communication device 104. As illustrated, the packet includes a preamble and a payload. After the transmission propagation delay, the destination communication device 104 receives the packet from the source communication device 102. Once the packet is received, the destination communication device 104 starts processing the packet for verification. At approximately the end of the time interval T1 defined from the transmission of the packet, the source communication device 102 performs a first scan S1 of the channel and attempts to receive a response packet from the destination communication device 104. In this example, the destination communication device 104 did not complete packet processing and verification within the first time interval T1. Accordingly, the destination communication device 104 does not transmit a response packet during the first scan S1 executed by the source communication device 102.

  In response to not receiving a response packet during the first scan S1, the source communication device 102 performs a second scan S2 of the channel and attempts to receive a response packet from the destination communication device 104. . In this example, the destination communication device 104 has completed processing and verifying the packet within the second time interval T2. Accordingly, the destination communication device 104 transmits a response packet during the second scan S2 executed by the source communication device 102. In this case, the source communication device 102 receives the response packet. The response packet can be an ACK packet that can also include a payload having a preamble and data. The data may indicate that a packet from the source communication device 102 has been received, processed and / or verified.

  At approximately the beginning of the second packet transmission cycle, the source communication device 102 transmits another packet to the destination communication device 104. After the transmission propagation delay, the destination communication device 104 receives the packet from the source communication device 102. Once the packet is received, the destination communication device 104 starts processing the packet for verification. After transmission of the packet, at approximately the end of the defined time interval T1, the source communication device 102 performs a first scan S1 of the channel and attempts to receive a response packet from the destination communication device 104. In this example, the destination communication device 104 has completed processing and verifying the packet within the first time interval T1. Accordingly, the destination communication device 104 transmits a response packet during the first scan S 1 and is received by the source communication device 102.

  The first defined time interval T1 may be based on an estimated minimum time for the source communication device to receive a response packet in response to transmitting the data packet. The second defined time interval T2 may be based on an estimated maximum time for the source destination communication device to receive a response packet in response to transmitting the data packet. For example, the first defined time interval T1 is an estimate when one communication link is supported. On the other hand, the second defined time interval is an estimate when the maximum number of simultaneous links is supported. These time intervals T1 and T2 may be based on bidirectional propagation delays between devices and delays associated with receiving and processing data packets by the destination communication device.

  FIG. 3 shows a flowchart 300 of an exemplary method of sending a packet and receiving a response packet performed by the source communication device 102 in accordance with another aspect of the disclosure. According to method 300, at approximately the beginning of a packet transmission cycle, source communication device 102 enables its transmitter 302 to transmit a data packet to destination communication device 104 (block 302). After the transmitter is enabled, the source communication device 102 transmits the packet to the destination communication device (block 304). After transmitting the packet, the source communication device 102 disables the transmitter to save more power (block 306). At that time, the source communication device 102 starts a timer and starts first and second defined time intervals T1 and T2.

  At approximately the end of the first defined time interval T1, the source communication device 102 enables its receiver and performs a first scan S1 of the channel for a response packet from the destination communication device 104 ( Block 308). The source communication device 102 then determines whether a response packet has been received (block 310). If at block 310 it is determined that a response packet has been received, the source communication device 102 waits for the next new packet transmission cycle (block 318). On the other hand, if it is determined at block 310 that a response packet has not been received, the source communication device 102 enables the receiver at approximately the end of the second defined time interval to remove from the destination communication device 104. A second scan S2 of the channel is performed for the response packet (block 312).

  The source communication device 102 then determines again whether a response packet has been received (block 314). If at block 314 it is determined that a response packet has been received, the source communication device 102 waits for the next new packet transmission cycle (block 318). On the other hand, if it is determined at block 314 that the response packet has not been received, the source communication device 102 waits for the next packet transmission cycle to retransmit the packet (block 316) or simply fails to transmit the packet. And

  FIG. 4 shows a flowchart 400 of an exemplary method of packet reception and response packet transmission performed by the destination communication device 104 in accordance with another aspect of the disclosure. In accordance with the method 400, at approximately the beginning of a packet reception cycle, the destination communication device 104 enables the receiver to receive data packets from the source communication device 102 (block 402). At that time, the destination communication device 104 starts a timer that holds an elapsed time T3 from almost the start of the packet reception cycle. After the receiver is enabled, the destination communication device 104 receives a packet from the source communication device 102 (block 404). After receiving the packet, the destination communication device 104 disables its receiver to save more power (block 406). The destination communication device 104 then processes the packet for verification (block 408).

  The destination communication device 104 then determines whether the received packet has been verified (block 410). If at block 410 it is determined that the received packet has not been verified, the destination communication device 104 waits for the next packet reception cycle (block 420). On the other hand, if at block 410 it is determined that the received packet has been verified, the destination communication device 104 then has a time interval T3 less than the first defined time interval T1 (eg, T3 <T1? ) (Block 412). If the time interval T3 is determined to be less than the time interval T1, the destination communication device 104 enables the transmitter at approximately the end of the first defined time interval T1 and sends a response packet to the source communication device 102. Transmit (block 414). Thereafter, the destination communication device 104 waits for the next packet reception cycle (block 420).

  On the other hand, if, in block 412, the destination communication device 104 determines that the time interval T3 is greater than the time interval T1, the device 104 then determines that the time interval T3 is less than the second defined time interval T2 (eg, It is determined whether T3 <T2? (Block 416). If block 416 determines that time interval T3 is less than time interval T2, destination communication device 104 enables the transmitter at approximately the end of second defined time interval T2 and returns to source communication device 102. A response packet is transmitted (block 418). Thereafter, the destination communication device 104 waits for the next packet reception cycle (block 420). On the other hand, if the block 416 determines that the time interval T3 is greater than the time interval T2, the destination communication device 104 proceeds to wait for the next packet reception cycle. (Block 420).

  FIG. 5 shows a block diagram of an exemplary communication device 500 in accordance with another aspect of the disclosure. Communication device 500 may be one exemplary implementation of the destination communication devices previously discussed. The communication apparatus 500 includes a packet reception module 502, a packet processing module 504, and a packet transmission module 506. The packet receiving module 502 is configured to receive a packet from the source communication device. The packet processing module 504 is configured to process received packets. The packet transmission module 506 sends a response packet to the source communication device at approximately the end of the first defined time interval when the packet processing module 504 completes processing of the packet received within the first defined time interval. Or the packet processing module 504 does not complete processing of a packet received within the first defined time interval but is received within the second defined time interval. Is completed, the response packet is configured to be transmitted to the source communication device at approximately the end of the second defined time interval.

  FIG. 6 shows a block diagram of another exemplary communication device 600 in accordance with another aspect of the disclosure. Communication device 600 may be one exemplary implementation of a source communication device previously discussed. The communication apparatus 600 includes a channel scanning module 602 and a packet transmission module 604. The packet transmission module 604 is configured to transmit a packet to the destination communication device. The channel scanning module 602 is configured to scan the channel for a response packet from the destination communication device at approximately the end of the first defined interval from transmission of the packet by the packet transmission module 604, and the response packet Configured to scan the channel for a response packet at approximately the end of the second defined time interval from the transmission of the packet by the packet transmission module 604 if the packet is not received within the first defined time interval. Is done.

  FIG. 7 shows a block diagram of an exemplary communication device in accordance with another aspect of the disclosure. Communication device 700 may be one exemplary implementation of previously discussed source and / or destination communication devices. In particular, the communication device 700 includes an antenna 702, a Tx / Rx isolation device 704, a receiver 706, a packet processing module 708, a data sink 710, a data source 712, a packet generation module 714, a transmitter 716 and a controller 718.

  When operating as a source communication device, data to be transmitted to the destination communication device is generated at the data source 712 and provided to the packet generation module 714. The packet generation module 714 then forms a data packet that incorporates data for transmission to the destination communication device. The packet generation module 714 provides data packets to a transmitter 716 that constitutes a transmission packet via a wireless medium (eg, data encoding, interleaving, channel encoding, modulation, up-conversion, etc.). The transmitter then transmits the configured data packet to the antenna 702 via the Tx / Rx isolation device 704 for propagation on the wireless media. Data sources 712 include sensors, microprocessors, microcontrollers, RISC processors, keyboards, pointing devices such as mice or trackballs, audio devices, such as headsets including transducers such as microphones, medical devices, shoes, It may be a robotic or mechanical device that generates data, such as a user interface, a touch responsive display, or the like.

  Controller 718 may enable transmitter 716 at approximately the beginning of a packet transmission cycle for the purpose of transmitting packets. Controller 718 may disable transmitter 716 in response to the transmitter completing transmission of the packet. After transmitting the packet, the controller 718 may start a timer for the purpose of scanning the channel at one or more possible time intervals from the transmission of the packet. At approximately the end of the first defined time interval T1 from the transmission of the packet, the controller 718 performs a first scan S1 of the channel for the reception of a response packet from the destination communication device in order to perform a first scan S1 of the channel. Can be enabled. If a response packet is received during the first scan S1, the controller 718 disables the receiver 706 to save power. Receiver 706 may perform the functions necessary to extract a response packet from the received signal (eg, filter, amplification, down-conversion, channel decoding, deinterleaving, data decoding, etc.). Receiver 706 provides a response packet to packet processing module 708, which extracts data from the response packet and provides it to data sink 710 for additional use.

  If no response packet is received during the first scan S1, the controller 718 disables the receiver 706 after the first scan S1 is completed to save power. At approximately the end of the second defined time interval T2 from the transmission of the packet, the controller 718 again enables the receiver 706 and receives a response packet from the destination communication device for a second scan S2 of the channel. Execute. If a response packet is received during the second scan S2, the controller 718 disables the receiver 706 to save power. The response packet is processed by the packet processing module 708 and the data extracted from the response packet can be provided to the data sink 710 for additional use thereof.

  When operating as a destination communication device, the controller 718 may enable the receiver 706 at approximately the beginning of a packet reception cycle to receive packets from the source communication device. In response to receiving the packet from the source communication device, the controller 718 disables the receiver 706 to conserve power and out of the first or second defined time interval T1 or T2. A timer is started for the purpose of sending a response packet to the source communication device at approximately the end of one of the. The received packet is provided to a packet processing module 708 that processes the packet for verification. After validating the packet, the packet processing module 708 sends the extracted data to the data sink for additional use on it to notify the controller 718 that the processing of the packet is complete. The data sink 710 may be a microprocessor, microcontroller, RISC processor, audio device, such as a headset including a transducer such as a speaker, medical equipment, shoes, a robotic device that responds to received data or mechanical It can be a device, a user interface, a display, one or more light emitting diodes (LEDs) and the like.

  Thereafter, the controller 718 determines whether the time elapsed since the start of the timer is less than the first defined time interval T1. If so, the controller 718 instructs the packet generation module 714 to generate a response packet and at approximately the end of the first defined time interval T1 to transmit the response packet to the source destination device. Enable transmitter 716. On the other hand, if the controller 718 determines that the time elapsed since the start of the timer is greater than the first defined time interval T1 but less than the second defined time interval T2, the controller 718 determines that the response packet Instructs the packet generation module 714 to generate and enables the transmitter 716 at approximately the end of the second defined time interval T2 to transmit a response packet to the source destination device.

  FIG. 8A illustrates different channels (channels 1 and 2) defined with different pulse repetition frequencies (PRFs) as examples of pulse modulation that may be used in any of the communication systems, devices, and apparatus described herein. Show. Specifically, the pulse for channel 1 has a pulse repetition frequency (PRF) corresponding to the interpulse delay period 802. Conversely, the pulse for channel 2 has a pulse repetition frequency (PRF) corresponding to the interpulse delay period 804. Thus, this technique can be used to define a quasi-orthogonal channel that has a relatively low probability of pulse collisions between the two channels. In particular, the possibility of pulse collisions can be reduced by using a low duty cycle for the pulses. For example, with proper selection of the pulse repetition frequency (PRF), substantially all pulses for a given channel can be transmitted at a different time than the pulses for any other channel.

  The pulse repetition frequency (PRF) defined for a given channel depends on the data rate or rates supported by that channel. For example, a channel that supports very low data rates (eg, about a few kilobits / second, or about a few Kbps) may use a corresponding low pulse repetition frequency (PRF). Conversely, channels that support relatively high data rates (eg, about a few megabits / second, or about a few Mbps) may use a corresponding high pulse repetition frequency (PRF).

  FIG. 8B shows different channels (channels 1 and 2) defined with different pulse positions or offsets as examples of modulation that may be used in any communication system described herein. A pulse for channel 1 is generated at the time indicated by line 806 according to the first pulse offset (eg, for a given time (not shown)). Conversely, a pulse for channel 2 is generated at the time indicated by line 808 according to the second pulse offset. Given the pulse offset difference between pulses (indicated by arrow 810), this technique can be used to reduce the likelihood of pulse collisions between the two channels. Use of different pulse offsets depending on other signaling parameters defined for the channel (eg, as discussed herein) and timing accuracy between devices (eg, relative clock drift) Can be used to provide orthogonal or pseudo-orthogonal channels.

  FIG. 8C shows different channels (channels 1 and 2) defined with different timing hopping sequence modulations that can be used in any of the communication systems described herein.

For example, pulse 812 for channel 1 may be generated at a time according to one time hopping sequence, while pulse 814 for channel 2 may be generated at a time according to another time hopping sequence. Depending on the particular sequence used and the timing accuracy between the devices, this technique may be used to provide an orthogonal or pseudo-orthogonal channel. For example, time hop pulse positions are not periodic in order to reduce the likelihood of repeated pulse collisions from adjacent channels.

  FIG. 8D shows different channels defined in different time slots as examples of pulse modulation that may be used in any communication system described herein. A pulse for channel L1 is generated at a specific time. Similarly, pulses for channel L2 are generated at other times. Similarly, pulses for channel L3 are generated at other times. In general, the times associated with different channels may not match or may be orthogonal to reduce or eliminate interference between the various channels.

  It should be appreciated that other techniques can be used to define a channel according to a pulse modulation scheme. For example, a channel may be defined based on a different spread pseudorandom sequence, or some other suitable parameter or parameters. Further, a channel is defined based on a combination of two or more parameters.

  FIG. 9 shows a block diagram of various ultra-wide band (UWB) communication devices that communicate with each other over various channels in accordance with another aspect of the disclosure. For example, UWB device 1 902 is communicating with UWB device 2 904 via two concurrent UWB channels 1 and 2. UWB device 902 communicates with UWB device 3 906 via one channel 3. Alternatively, UWB device 3 906 is communicating with UWB device 4 908 via one channel 4. Other configurations are possible. Communication devices are used in a variety of applications, such as headsets, microphones, biometric sensors, heart rate monitors, pedometers, EKG devices, watches, shoes, remote controls, switches, tire pressure monitors. Or may be implemented in other communication devices. Medical devices include smart band-aids, sensors, vital sign monitors, and others. The communication devices described herein may be used in any type of sensing application, such as for sensing auto-propulsion responses, athletic responses, and physiological (medical) responses.

  Any of the above aspects of the disclosure may be implemented on a variety of devices. For example, in addition to medical applications as discussed above, the disclosed aspects can be applied to health and fitness applications. Further, the disclosed aspects are implemented with shoes for different types of applications. There are numerous other applications that can incorporate any aspect of the disclosure as described herein.

  Various aspects of the disclosure have been described above. It will be apparent that the teachings herein are embodied in a wide variety of forms and that any particular structure, function, or both disclosed herein is merely representative. Based on the teachings herein, those skilled in the art will appreciate that the aspects disclosed herein may be implemented independently of any other aspects, and two or more of these aspects may be combined in various ways. Yes. For example, any number of aspects described herein may be used to implement an apparatus or method. Further, in addition to one or more aspects described herein, or using other structures, functions, or structures and functions, such devices may be implemented or such methods may be implemented. Can be implemented. As an example of some of the above concepts, in some aspects, the concurrent channel is configured based on a pulse repetition frequency. In some aspects, the concurrent channel is configured based on pulse position or offset. In some aspects, the concurrent channel is configured based on a time hopping sequence. In some aspects, the concurrent channel is configured based on the pulse repetition frequency, pulse position, or offset, and time hopping sequence.

  It will be appreciated by those skilled in the art that information and signals may be represented using a variety of different arbitrary technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout the description are represented by voltages, currents, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof. .

  Those skilled in the art will further recognize that the various illustrative logic blocks, modules, processors, means, circuits, and algorithm steps described in connection with the aspects disclosed herein are electronic hardware (eg, source coding or Designed using some other technique, digital implementation, analog implementation, or a combination of the two) (for convenience, as “software” or “software module”) It will be appreciated that various forms of program or design code incorporating instructions (indicated herein) may be implemented, or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Those skilled in the art can implement the described functionality in a variety of ways for each specific application, but such implementation decisions should not be construed as departing from the scope of the present disclosure. Absent.

  Various exemplary logic blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented within an integrated circuit (“IC”), access terminal, or access point, or It may be performed by an integrated circuit (“IC”), access terminal or access point. ICs may be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logics ( transistor logic), discrete hardware components, electrical components, optical components, mechanical components, or any combination thereof designed to perform the functions described herein, within an IC, external to an IC Or code or instructions residing in both. A general purpose processor is a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a computing device, eg, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors coupled to a DSP core, or any other such configuration.

  It is understood that any particular order or hierarchy of steps in any disclosed process is an example of a sample approach. Based on design preferences, it is understood that a particular order or hierarchy of steps in the process can be rearranged while remaining within the scope of this disclosure. The accompanying methods claim the current elements of the various steps in the order example and are not intended to be limited to a particular order or current hierarchy.

  The method or algorithm steps described in connection with the aspects disclosed herein may be implemented directly in hardware, implemented in software modules executed by a processor, or implemented in combination of the two. obtain. Software modules (eg, including executable instructions and associated data) and other data include RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or It may reside in data memory, such as any other form of computer readable storage medium known in the art. Sample storage media are, for example, computers / processors (referred to herein as “processors” for convenience) so that such processors can read information (eg, code) from and write information to the storage media. It can be connected to a machine such as Sample storage media may be integral to the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in user equipment. In the alternative, the processor and the storage medium may reside as discrete components in user equipment. Further, in some aspects, any suitable computer program product may include a computer-readable medium that includes code for one or more disclosed aspects. In some aspects, the computer program product may include packaging materials.

Although the invention has been described in connection with various aspects, it will be understood that the invention is capable of further modifications. This application is intended to include any variation, use or modification of the invention described below, and in general it is known in the technology to which the invention pertains, including the principles of the invention and such deviations from the present disclosure. And within the regular implementation.
Hereinafter, the invention described in the scope of claims of the present application will be appended.
(1) receiving a first packet;
Processing the first packet;
Sending the second packet at approximately the end of the first defined time interval if the processing of the first packet is completed within a first defined time interval; and
If the processing of the first packet does not complete within the first defined interval, but does complete within a second defined time interval, at about the end of the second defined time interval Sending a second packet;
Including a communication method.
(2) The first defined interval includes a first estimated period for receiving the first packet and a second estimated period for processing the first packet. The method according to (1) above, based on at least one of the following.
(3) The method according to (1), wherein the first packet includes at least one of a preamble and a payload.
(4) The second packet includes a message indicating at least one of reception of the first packet, processing of the first packet, and verification of the first packet, and a preamble. The method of (1) above, comprising at least one.
(5) The method of (1) above, wherein the difference between the first defined interval and the second defined interval is based on a supported simultaneous communication link.
(6) The method of (1), further comprising disabling a receiver in response to receiving the first packet.
(7) The method of (1) above, further comprising disabling a transmitter in response to transmitting the second packet.
(8) a receiver adapted to receive the first packet;
A processing module adapted to process the first packet; and
If the processing of the first packet is completed within a first defined time interval, send a second packet at approximately the end of the first defined time interval; or
If the processing of the first packet does not complete within the first defined interval, but does complete within a second defined time interval, at about the end of the second defined time interval A transmitter adapted to transmit a second packet;
A communication device comprising:
(9) The first defined interval may include a first estimated period for receiving the first packet and a second estimated period for processing the first packet. (8) The apparatus according to (8) above, based on at least one of the following.
(10) The device according to (8), wherein the first packet includes at least one of a preamble and a payload.
(11) The second packet includes a message indicating at least one of reception of the first packet, processing of the first packet, and verification of the first packet, and a preamble. The apparatus according to (8), comprising at least one.
(12) The difference between the first defined interval and the second defined interval is based on a simultaneous communication link supported by at least one of the receiver and the transmitter. The device of (8) above.
(13) The apparatus of (8), further comprising a controller adapted to disable the receiver in response to the receiver receiving the first packet.
(14) The apparatus of (8), further comprising a controller adapted to disable the transmitter in response to transmitting the second packet.
(15) means for receiving the first packet;
Means for processing the first packet; and
If the processing of the first packet is completed within a first defined time interval, or substantially at the end of the first defined time interval, or the processing of the first packet is If it does not complete within the first defined interval and does not complete within a second defined time interval, a second packet is transmitted at approximately the end of the second defined time interval. means,
A communication device comprising:
(16) The first defined interval is a first estimated period for receiving the first packet and a second estimated period for processing the first packet. (15) The apparatus according to (15) above, based on at least one of the following.
(17) The device according to (15), wherein the first packet includes at least one of a preamble and a payload.
(18) The apparatus further includes means for generating the second packet, wherein the means for generating the second packet includes receiving the first packet, processing the first packet, and processing the first packet. The apparatus of (15), wherein the apparatus is adapted to provide information in the second packet indicating at least one of verifications.
(19) The simultaneous communication link supported by at least one of the means for receiving and the means for transmitting is a difference between the first defined interval and the second defined interval. The apparatus according to (15) above, based on
(20) The apparatus according to (15), further comprising means for disabling the means for receiving in response to the means for receiving receiving the first packet.
(21) The apparatus according to (15), further comprising means for disabling the means for transmitting in response to the means for transmitting transmitting the second packet.
(22) receiving the first packet;
Processing the first packet; and
If the processing of the first packet is completed within a first defined time interval, or substantially at the end of the first defined time interval, or the processing of the first packet is If it does not complete within the first defined interval and does not complete within a second defined time interval, a second packet is transmitted at approximately the end of the second defined time interval. about,
A computer program product for communication, comprising a computer readable medium encoded with executable instructions.
(23) a receiver adapted to receive the first packet;
A processing module adapted to process the first packet;
If the processing of the first packet is completed within a first defined time interval, send a second packet at approximately the end of the first defined time interval; or If the processing of one packet does not complete within the first defined interval and does not complete within a second defined time interval, at approximately the end of the second defined time interval A transmitter adapted to transmit a second packet; and
A transducer adapted to generate sound based on data contained in the first packet
With headset.
(24) a receiver adapted to receive the first packet;
A processing module adapted to process the first packet;
If the processing of the first packet is completed within a first defined time interval, send a second packet at approximately the end of the first defined time interval; or If the processing of one packet does not complete within the first defined interval and does not complete within a second defined time interval, at approximately the end of the second defined time interval A transmitter adapted to transmit a second packet; and
A user interface adapted to generate an indication based on data contained in the first packet
Wristwatch equipped with.
(25) a receiver adapted to receive the first packet;
A processing module adapted to process the first packet;
If the processing of the first packet is completed within a first defined time interval, send a second packet at approximately the end of the first defined time interval; or If the processing of one packet does not complete within the first defined interval and does not complete within a second defined time interval, at approximately the end of the second defined time interval A transmitter adapted to transmit a second packet; and
A sensor adapted to generate detection data included in the second packet;
A sensing device comprising:
(26) transmitting the first packet;
Scanning a channel for a second packet at approximately the end of a first defined time interval from the transmission of the first packet; and
If the second packet is not received within the first defined interval, the second packet is sought at approximately the end of a second defined time interval from the transmission of the first packet. Scanning channels,
Including a communication method.
(27) The method of (26) above, wherein the first defined interval is based on an estimated period for receiving the second packet in response to transmitting the first packet.
(28) The method according to (26), wherein the first packet includes at least one of a preamble and a payload.
(29) The method of (26) above, wherein the difference between the first defined interval and the second defined interval is based on a supported simultaneous communication link.
(30) The method of (26), further comprising disabling a transmitter in response to transmitting the first packet;
(31) further comprising disabling a receiver in response to at least one of completion of the first scan, completion of the second scan, and reception of the second packet; The method of (26).
(32) a transmitter adapted to transmit the first packet;
Scanning a channel for a second packet at approximately the end of a first defined time interval from the transmission of the first packet, and the second packet is within the first defined interval A receiver adapted to scan the channel for the second packet at approximately the end of a second defined time interval from the transmission of the first packet,
A communication device comprising:
(33) The apparatus according to (32), wherein the first defined interval is based on an estimated period for receiving the second packet in response to transmitting the first packet. .
(34) The device according to (32), wherein the first packet includes at least one of a preamble and a payload.
(35) The difference between the first defined interval and the second defined interval is based on a simultaneous communication link supported by at least one of the receiver and the transmitter. The device of (32) above.
(36) The apparatus of (32), further comprising a controller adapted to disable the transmitter in response to the transmitter transmitting the first packet.
(37) Disabling the receiver in response to at least one of completion of the first scan, completion of the second scan, and reception of the second packet of the receiver. The apparatus according to (32), further comprising a controller adapted to the above.
(38) means for transmitting the first packet; and
Means for scanning the channel for a second packet at approximately the end of a first defined time interval from transmission of the first packet;
And the means for scanning comprises substantially ending a second defined time interval from transmission of the first packet if the second packet is not received within the first defined interval. Sometimes adapted to scan the channel for the second packet;
Communication device.
(39) The apparatus of (38), wherein the first defined interval is based on an estimated period for receiving the second packet in response to transmitting the first packet.
(40) The device according to (38), wherein the first packet includes at least one of a preamble and a payload.
(41) The difference between the first defined interval and the second defined interval is a simultaneous communication link supported by at least one of the means for receiving and the means for transmitting. The apparatus according to (38) above.
(42) The apparatus according to (38), further comprising means for disabling the means for transmitting in response to the means for transmitting transmitting the first packet.
(43) The means for scanning is disabled in response to at least one of completion of the first scan, completion of the second scan, and reception of the second packet of the means for receiving The apparatus of (38), further comprising means for:
(44) send the first packet;
Scanning a channel for a second packet at approximately the end of a first defined time interval from the transmission of the first packet; and
If the second packet is not received within the first defined interval, the second packet is sought at approximately the end of a second defined time interval from the transmission of the first packet. Scanning the channel;
A computer program product for communication, comprising a computer readable medium encoded with executable instructions.
(45) a transmitter adapted to transmit the first packet;
Scanning a channel for a second packet at approximately the end of a first defined interval from the transmission of the first packet, and the second packet is within the first defined interval A receiver adapted to scan the channel for the second packet, if not received, at about the end of a second defined time interval from the transmission of the first packet;
A transducer adapted to generate sound based on data contained in the second packet;
With headset.
(46) a transmitter adapted to transmit the first packet;
Scanning a channel for a second packet at approximately the end of a first defined interval from the transmission of the first packet, and the second packet is within the first defined interval A receiver adapted to scan the channel for the second packet, if not received, at about the end of a second defined time interval from the transmission of the first packet;
A user interface adapted to generate an indication based on data contained in the second packet;
Wristwatch equipped with.
(47) a transmitter adapted to transmit a first packet;
Scanning a channel for a second packet at approximately the end of a first defined time interval from the transmission of the first packet, and the second packet is within the first defined interval A receiver adapted to scan the channel for the second packet at approximately the end of a second defined time interval from the transmission of the first packet ,
A sensor adapted to generate sensing data included in the first packet;
A sensing device comprising:

Claims (22)

A communication method for a communication device comprising a transmitter and a receiver,
The transmitter transmits a first packet within a packet transmission cycle ;
The receiver performs a first scan of a channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle ; and If the second packet is not received during the first scan, the receiver terminates a second defined time interval from transmission of the first packet within the packet transmission cycle. performing a second scan of the channel at seeking the second packet,
Including a communication method.   The method of claim 1, wherein the first defined time interval is based on an estimated period for receiving the second packet in response to transmitting the first packet.   The method of claim 1, wherein the first packet includes at least one of a preamble and a payload.   The method of claim 1, wherein a difference between the first defined time interval and the second defined time interval is based on supported simultaneous communication links. The method of claim 1, further comprising that in response to transmitting the first packet, disabling the transmitter, Completion of the first scan, the completion of the second scan, and in response to at least one of the reception of the second packet, further comprising disabling the receiver, according to claim 1 the method of. A transmitter adapted to transmit the first packet within a packet transmission cycle ;
Performing a first scan of the channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle , and the second packet If but not received during the first scan, the channel seeking second defined ends at the second packet time interval from the transmission of the first packet in the packet transmission cycle A receiver adapted to perform a second scan;
A communication device comprising:   8. The apparatus of claim 7, wherein the first defined time interval is based on an estimated period for receiving the second packet in response to transmitting the first packet.   The apparatus of claim 7, wherein the first packet comprises at least one of a preamble and a payload.   The difference between the first defined time interval and the second defined time interval is based on simultaneous communication links supported by at least one of the receiver and the transmitter; The apparatus of claim 7.   8. The apparatus of claim 7, further comprising a controller adapted to disable the transmitter in response to the transmitter transmitting the first packet.   Adapted to disable the receiver in response to at least one of completion of the first scan of the receiver, completion of the second scan, and reception of the second packet. 8. The apparatus of claim 7, further comprising a controller. Means for transmitting a first packet within a packet transmission cycle ; and
Performing a first scan of the channel for a second packet at the end of a first defined time interval from transmission of the first packet within the packet transmission cycle ;
If the second packet was not received during the first scan, the second packet at the end of a second defined time interval from transmission of the first packet within the packet transmission cycle. Means for scanning, adapted to perform a second scan of the channel for
A communication device comprising:   14. The apparatus of claim 13, wherein the first defined time interval is based on an estimated period for receiving the second packet in response to transmitting the first packet.   The apparatus of claim 13, wherein the first packet comprises at least one of a preamble and a payload.   The difference between the first defined time interval and the second defined time interval is based on a simultaneous communication link supported by at least one of the means for receiving and the means for transmitting. The apparatus of claim 13.   14. The apparatus of claim 13, further comprising means for disabling the means for transmitting in response to the means for transmitting transmitting the first packet. The completion of the first scan, the completion of the second scan, and in response to at least one of the reception of the second packet, further comprising means for disabling said means for scanning, claim 13 devices. Send the first packet within the packet send cycle ,
Performing a first scan of the channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle ; and
If the second packet was not received during the first scan, the second packet at the end of a second defined time interval from transmission of the first packet within the packet transmission cycle. Performing a second scan of the channel for
The computer program for communication provided with the instruction | indication which can be executed. A transmitter adapted to transmit the first packet within a packet transmission cycle ;
Performing a first scan of the channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle , and the second packet Is not received during the first scan, and the second packet is determined at the end of a second defined time interval from the transmission of the first packet within the packet transmission cycle. A receiver adapted to perform a second scan of the channel;
A transducer adapted to generate sound based on data contained in the second packet;
With headset. A transmitter adapted to transmit the first packet within a packet transmission cycle ;
Performing a first scan of the channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle , and the second packet Is not received during the first scan, and the second packet is determined at the end of a second defined time interval from the transmission of the first packet within the packet transmission cycle. to perform a second scan of the channel, a receiver adapted,
A user interface adapted to generate an indication based on data contained in the second packet;
Wristwatch equipped with. A transmitter adapted to transmit the first packet within a packet transmission cycle ;
Performing a first scan of the channel for a second packet at the end of a first defined time interval from the transmission of the first packet within the packet transmission cycle , and the second packet Is not received during the first scan, and the second packet is determined at the end of a second defined time interval from the transmission of the first packet within the packet transmission cycle. A receiver adapted to perform a second scan of the channel;
A sensor adapted to generate sensing data included in the first packet;
A sensing device comprising:

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